<HTML><HEAD><TITLE>sbds_get_index(?Var, -Idx)</TITLE>
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<H1>sbds_get_index(?Var, -Idx)</H1>
get the index of an SBDS attributed variable
<DL>
<DT><EM>Var</EM></DT>
<DD>SBDS variable
</DD>
<DT><EM>Idx</EM></DT>
<DD>The index of Var
</DD>
</DL>
<H2>Description</H2>
	Unifies Idx with the index of the SBDS variable Var.  The index of
	the variable is its position in the matrix provided in the
	corresponding call to sbds_initialise/4 or sbds_initialise/5
<H3>Fail Conditions</H3>
Var is not an SBDS variable.

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